Expandable Non-reflective Piano Music Sheet Binder Folder, Black 40 Pages with Index Tabs & Pen

1. Thickened, flexible outer shell, resistant to drops and wear.
2. PP cover, waterproof and stain-resistant.
3. Versatile for various uses and easy to store.
4. Double-sided viewing, non-reflective.
5. Four-page display, suitable for A4/A3 sheet music.
6. Multiple styles available.